India recently revised the Wholesale Price Index (WPI) series by adopting 2022–23 as the new base year. Which base year series has been replaced?

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The correct answer is Option D: 2011–12. India introduced a revised Wholesale Price Index (WPI) series with base year 2022–23, replacing the earlier 2011–12 series. India has launched Producer Price Indices (PPIs), including Output Producer Price Index (OPPI), Input Producer Price Index (IPPI), and Service Producer Price Indices. The revised WPI commodity basket has been expanded from 697 items to 957 items to improve economic coverage. Solar power, wind power, and nuclear electricity have been incorporated into the new WPI series, with nuclear electricity included for the first time. The revised WPI uses Gross Value of Output (GVO) for assigning weights instead of the earlier Net Traded Value (NTV) method. The Output Producer Price Index (OPPI) measures prices received by producers, while the Input Producer Price Index (IPPI) tracks prices paid for production inputs. The Service Producer Price Indices currently cover seven sectors: banking, securities transactions, insurance, pension fund management, railways, air passenger transport, and telecommunications. India's WPI inflation stood at 9.68% in May 2026, with Fuel and Power recording the highest inflation rate at 30.33%.

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2004–05

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2009–10

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2010–11

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2015–16

India recently revised the Wholesale Price Index (WPI) series by adopting 2022–23 as the new base year. Which base year series has been replaced?

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India recently revised the Wholesale Price Index (WPI) series by adopting 2022–23 as the new base year. Which base year series has been replaced?

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